You can't blame Superman. Looking at the history of Krypton one did not see very much "color." One has to assume in the Fortress of Solitude, Jor-EL in one of his many messages to Kal-EL, had to ask, "what's it like to be with a sexy black woman?" Superman's response, "bootylicious and delicious!" Jor-EL then responds, "Tell me more, son. Tell me, more, but keep it quiet your mom's around here somewhere."